(Bloomberg) --

ABB Ltd. will repay 1.56 billion rand ($103 million) to South Africa’s power utility, the latest international company to return money after being ensnared in corruption probes in the country.

The reimbursement was agreed with the nation’s Special Investigating Unit, state-owned Eskom Holdings SOC Ltd. said in a statement Friday. ABB has already accounted for the bulk of the payment in its financials, the Zurich-based company said in a separate statement.

By returning the funds, ABB joins McKinsey & Co. and KPMG LLP among firms that have given back money they’ve earned in South Africa from contracts tainted by graft. McKinsey this week said it would repay 650 million rand to the state logistics company and national airline after handing back 1 billion rand to Eskom two years ago. The U.S. consultancy’s chief risk officer testified at a state judicial inquiry on Thursday.

The recovery is the biggest ever by the SIU and sends “a clear message about the commitment of government to assist the SIU and other law-enforcement agencies to do their jobs,” Justice Minister Ronald Lamola said at a briefing.

Rampant Corruption

President Cyril Ramaphosa came to power three years ago with a pledge to clamp down on state corruption that became rampant under former President Jacob Zuma’s nine-year rule. The government estimates that more than 500 billion rand was looted from the state, much of it from government firms while Zuma was in power.

Investigators this year widened a probe into contracts that Eskom signed with five international companies including ABB, WSP Global Inc., Black & Veatch Corp., Alstom SA and Tenova SpA. The deals were all repeatedly modified, with the value increasing to a multiple of their initial approved cost.

READ: WSP, Alstom Among Eskom Supply Contracts Facing State Probe

They were connected to the construction of coal-fired electricity plants, including the Kusile Power Station, that have run tens-of-billions of rand over budget and are yet to be completed. That has contributed to recurrent power shortages in the country and Eskom’s unsustainable 484 billion rand debt.

In July, Eskom said it estimated it had overpaid ABB by 1 billion rand and the engineering firms collectively by 4 billion rand. It plans to pursue a further 3 billion rand of irregular spending at Kusile.

(Updates with comment by ABB in second paragraph.)

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